Online pipe surface automatic marking detection device
By combining the transmission component, marking device, and positioning adsorption component, the problems of smoke pollution and inaccurate positioning during laser marking on pipe surfaces are solved, thereby improving stability and cleanliness.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2026-01-30
- Publication Date
- 2026-04-10
AI Technical Summary
In existing technologies, the smoke generated during laser marking on pipe surfaces pollutes the environment and equipment, and the lack of a stable positioning device leads to inaccurate marking positions.
It employs a transmission component, a marking device, and a positioning and adsorption component, including a servo motor-driven lead screw, an air blowing section, and an air suction section, for clamping the pipe and removing smoke. At the same time, a cleaning component is provided to clean the marked surface.
It improves the stability and cleanliness of the pipe marking process, effectively removes smoke and ensures accurate marking position, thereby improving the cleanliness of the equipment and the marking effect.
Smart Images
Figure CN121820904A_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The application belongs to the technical field of laser marking, more particularly relates to an online pipe surface automatic marking detection device. BACKGROUND
[0002] In the prior art, a laser marking machine is usually used to mark the surface of a pipe by using laser technology; the laser beam is used to process the surface of a workpiece, and permanent marking of the surface of the pipe is realized by controlling the position and power of the laser beam; when laser marking is performed, a certain amount of smoke is generated in the process of oxidation, boiling and ablation of the local surface of the pipe, and the smoke and particulate matter not only pollute the working environment, but more importantly, pollute the laser marking equipment and affect the marking effect; if not cleaned for a long time, the marking equipment may be damaged due to overheating; meanwhile, during the marking of the pipe, the pipe is directly placed on the conveying device, and a stable positioning device is lacking, so that the pipe may be angularly deflected, the marking position is inaccurate, and the like; therefore, an online pipe surface automatic marking detection device for cleaning the attached smoke and stably positioning is needed. SUMMARY
[0003] The technical problem to be solved by the application is to provide an online pipe surface automatic marking detection device, which can improve the stability of pipe marking and clean the smoke generated during marking and the smoke attached to the surface of the pipe.
[0004] The online pipe surface automatic marking detection device of the application is used for conveying and marking a pipe, and comprises a conveying assembly, a marking device and a positioning and adsorbing assembly. The conveying assembly is used for conveying the pipe, and the marking device and the positioning and adsorbing assembly are located on the conveying passage of the conveying assembly. The marking device is used for laser marking the surface of the pipe. The positioning and adsorbing assembly comprises a positioning table, a servo motor, a lead screw, a partition plate, a gas blowing part and a gas adsorbing part; the positioning table is fixedly arranged on the conveying passage, the servo motor is fixedly arranged on the outer side of the positioning table, and the partition plate is fixedly arranged in the middle of the positioning table; the lead screw is transversely arranged on the positioning table and the partition plate, the output end of the servo motor is connected with the lead screw to drive the lead screw to rotate; the gas blowing part and the gas adsorbing part are arranged on the left and right sides of the partition plate respectively, and the lead screw is connected with the gas blowing part and the gas adsorbing part respectively; the lead screw is divided into two parts by the center of the partition plate, and the threads on the left and right sides of the lead screw are oppositely arranged, so that the gas blowing part and the gas adsorbing part on the left and right sides can be simultaneously close to or away from each other.
[0005] As a further improvement of the application, the air blowing part comprises an air blowing slider and an air blowing plate; the air blowing slider is threadedly connected with the right side of the lead screw, and the lower side of the air blowing slider is slidingly connected with the positioning table; the air blowing plate is fixedly arranged on the upper side of the air blowing slider and has an arc structure; the air sucking part comprises an air sucking slider and an air sucking plate; the air sucking slider is threadedly connected with the left side of the lead screw, and the lower side of the air sucking slider is slidingly connected with the positioning table; the air sucking plate is fixedly arranged on the upper side of the air sucking slider and has an arc structure; when the pipe is positioned and clamped, the arc surface of the air blowing plate faces the outer side of the pipe, the arc surface of the air sucking plate abuts against the outer side of the pipe, and the pipe is clamped and limited.
[0006] As a further improvement of the application, the air blowing part further comprises an air blowing pipe; the air blowing plate has a hollow structure, one end of the air blowing pipe is connected with the outer side of the air blowing plate to communicate the inside of the air blowing plate with the outside, and the other end of the air blowing pipe is connected with an external air blowing pump to deliver gas into the inside of the air blowing plate; a plurality of air blowing holes are formed in the arc surface of the air blowing plate and uniformly distributed on the arc surface of the air blowing plate.
[0007] As a further improvement of the application, the air sucking part further comprises an air sucking pipe; the air sucking plate has a hollow structure, one end of the air sucking pipe is connected with the outer side of the air sucking plate to communicate the inside of the air sucking plate with the outside, and the other end of the air sucking pipe is connected with an external air sucking pump to extract gas into the inside of the air sucking plate; a plurality of air sucking holes are formed in the arc surface of the air sucking plate and uniformly distributed on the arc surface of the air sucking plate.
[0008] As a further improvement of the application, a plurality of adsorption holes are formed in the upper side of the air sucking plate, and the adsorption holes are used for adsorbing the smoke generated by the marking.
[0009] As a further improvement of the application, the transmission assembly comprises a rack, a plurality of transmission seats, a rotating roller and a gear shaft; a plurality of groups of transmission seats are fixedly arranged in a transverse direction on the rack; each group of transmission seats comprises two transmission parts arranged in a left-right symmetry to form a conveying channel; the transmission seats are arranged at equal intervals, and the corresponding transmission parts are arranged in a facing interval; the rotating roller is installed on the transmission seat through the gear shaft, and the rotating roller is rotationally connected with the transmission seat; a gear is fixedly arranged on one end of the gear shaft; the pipe is placed on the rotating roller to drive the pipe to move along the length direction of the rack.
[0010] As a further improvement of the application, the marking device is fixedly arranged between the two groups of transmission seats, the output end of the marking device is a marking head, and the marking head is located on the upper side of the pipe; the marking device is electrically connected with an external marking system to control the content output by the marking, and the marking content at least comprises product batch and manufacturer name information.
[0011] As a further improvement of the present application, it further comprises a cleaning assembly; the cleaning assembly comprises a connecting rod, a lifting plate, a cleaning support, a transmission wheel, a lifting rod and a support plate, the cleaning assembly is arranged in sequence after the positioning and adsorbing assembly, and is used for cleaning the surface of the pipe after marking; the connecting rod and the lifting plate are symmetrically arranged on both sides of the conveying channel, the connecting rod is connected with the corresponding air blowing part or air sucking part, and the connecting rod is connected with the lifting plate; the support plate is provided in two pieces and is symmetrically arranged on both sides of the rack, and a lifting groove is formed in the inner side surface of the support plate; the lifting plate is located between the support plates; the cleaning support is arranged on the upper side of the lifting plate, the lower side surface of the cleaning support is a matching inclined surface with the surface of the lifting plate, the lower side surface of the cleaning support is in abutment with the upper side surface of the lifting plate; the lifting rod is arranged at the outer side of the upper part of the cleaning support, one end of the lifting rod is connected with the outer side surface of the cleaning support, and the other end is slidably connected with the corresponding lifting groove; the transmission wheel is provided in two pieces and is arranged at the two ends of the cleaning support in front and back, and the transmission wheel is rotatably connected with the inner side of the cleaning support; the transmission wheel is located on the upper side of the pipe, the cleaning felt is wound between the two transmission wheels, the cleaning felt is located on the upper side of the pipe, and the cleaning felt can move along the transmission direction of the transmission wheel.
[0012] As a further improvement of the present application, one end of the connecting rod on the left side is connected with the side end surface of the air blowing part, the other end is connected with the lifting plate on the left side, and the upper side surface of the lifting plate on the left side is an inclined surface inclined downward from left to right; one end of the connecting rod on the right side is connected with the side end surface of the air sucking part, the other end is connected with the lifting plate on the right side, and the upper side surface of the lifting plate on the right side is an inclined surface inclined downward from right to left; when the air blowing part and the air sucking part approach or move away from each other, the lifting plates on the left and right sides are synchronously driven to approach or move away from each other.
[0013] As a further improvement of the present application, the cleaning felt is made of graphite material; when the cleaning support is lowered to the lowest position, the cleaning felt on the lower side is in contact with the surface of the pipe, and the flat part at the bottom of the cleaning felt is synchronously moved with the pipe in the movement process, so as to clean the surface of the pipe after marking.
[0014] Compared with the prior art, the present application has the following advantages: 1. By setting up an air blowing section and an air suction section, during the laser marking process, the surface of the tube is locally heated, and reactions such as oxidation, boiling, and ablation occur on the tube surface, generating smoke. The servo motor drives the lead screw to rotate, and the air blowing slider and air suction slider move towards each other to bring the air blowing plate and air suction plate closer together to position and clamp the tube, preventing the tube from shaking during the marking process and ensuring that the marking area does not shift. The air suction plate abuts against the outer side of the tube, generating an adsorption force on the tube surface through the air suction hole, while the air blowing plate generates a pushing force on the tube surface through the air blowing hole, simultaneously blowing the smoke towards the suction section. The adsorption hole is used to absorb the smoke, allowing for more complete and rapid absorption of the smoke generated during marking. After marking is completed, the air blowing slider and air suction slider move in opposite directions to move the air blowing plate and air suction plate away from each other, stopping the clamping of the tube, and the rotating roller continues to move the tube.
[0015] 2. By setting up a cleaning component, after marking is completed, the blowing slider and the suction slider move in opposite directions, the connecting rod drives the lifting plates on both sides to move in opposite directions, the lower end face of the cleaning bracket slides relative to the upper side of the lifting plate, the lifting rod slides down along the lifting groove to lower the cleaning bracket, so that the cleaning felt comes into contact with the surface of the pipe, the pipe continues to be conveyed forward, and is conveyed to the next marking position of the pipe to reach the marking device. During the movement of the pipe, the straight part at the bottom of the cleaning felt moves synchronously, and the cleaning felt rolls back and forth driven by the transmission wheel. Some areas of the pipe surface after marking are covered with smoke. After the cleaning felt passes through this area, it wipes the area to remove the smoke, improving the surface cleanliness of the pipe after marking. Attached Figure Description
[0016] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is another overall structural schematic diagram of the present invention; Figure 3 This is an enlarged view of the positioning adsorption component of the present invention; Figure 4 This is a schematic diagram of the structure of a specific embodiment two of the present invention; Figure 5 This is an enlarged view of the cleaning component of the present invention; Figure 6 This is another structural schematic diagram of a specific embodiment two of the present invention; Figure 7 This is a schematic diagram of the cleaning component of the present invention in the cleaning state.
[0017] Explanation of the labels in the diagram: 1. Pipe; 2. Conveying assembly; 21. Frame; 22. Conveying seat; 23. Rotary roller; 24. Gear shaft; 3. Marking device; 31. Marking head; Positioning adsorption assembly 4, positioning table 41, servo motor 42, lead screw 43, air blowing slider 44, air blowing plate 45, air blowing hole 451, air blowing pipe 46, air suction slider 47, air suction plate 48, air suction hole 481, adsorption hole 482, air suction pipe 49; Cleaning assembly 5, connecting rod 51, lifting plate 52, cleaning support 53, transmission wheel 54, cleaning felt 55, lifting rod 56, support plate 57, lifting groove 58. DETAILED DESCRIPTION
[0018] Specific embodiment one: please refer to Figures 1-3 An online pipe surface automatic marking detection device, which comprises a conveying assembly 2, a marking device 3 and a positioning adsorption assembly 4; the conveying assembly 2 is used for conveying a pipe 1, and the marking device 3 and the positioning adsorption assembly 4 are both located on a conveying channel of the conveying assembly 2; the marking device 3 is used for laser marking on the surface of the pipe 1. In this embodiment, the pipe 1 is a corrosion-resistant and antibacterial titanium alloy pipe.
[0019] The conveying assembly 2 comprises a rack 21, a conveying seat 22, a rotating roller 23 and a gear shaft 24. A plurality of sets of the conveying seat 22 are fixedly arranged in a transverse direction on the rack 21, and each set of the conveying seat 22 comprises two transmission parts which are symmetrically arranged left and right to form the conveying channel. The transmission part is a block structure, the lower side of the transmission part is fixedly connected with the upper side of the rack 21, and the side end face of the transmission part is used for mounting the rotating roller 23. The conveying seats 22 are arranged at equal intervals, and the corresponding transmission parts are arranged at intervals in opposite directions. The rotating roller 23 is mounted on the conveying seat 22 through the gear shaft 24, and the rotating roller 23 is rotationally connected with the conveying seat 22. A gear is fixedly arranged at one end of the gear shaft 24 (not shown in the figure). It should be noted that the chain driving gear transmission is a conventional technical means, which will not be described here. The pipe 1 is placed on the rotating roller 23 to drive the pipe 1 to move along the length direction of the rack 21.
[0020] The marking device 3 is fixedly arranged between the two sets of conveying seats 22, and the output end of the marking device 3 is a marking head 31. The marking head 31 is located on the upper side of the pipe 1. It should be noted that the marking device 3 is electrically connected with an external marking system to control the content of the marking output. The marking content at least includes product batch and manufacturer name information.
[0021] The positioning and adsorbing assembly 4 comprises a positioning table 41, a servo motor 42, a screw rod 43, a partition plate, a blowing part and a suction part. The positioning table 41 is fixedly arranged on the upper side of the rack 21, the servo motor 42 is fixedly arranged on the outer side of the positioning table 41, and the partition plate is fixedly arranged in the middle of the positioning table 41. The screw rod 43 is transversely arranged on the positioning table 41 and the partition plate, and the output end of the servo motor 42 is connected with the screw rod 43 to drive the screw rod 43 to rotate. The blowing part and the suction part are respectively arranged on the left and right sides of the partition plate, and the screw rod 43 is connected with the blowing part and the suction part. The screw rod 43 is divided into two parts by the center of the partition plate, and the threads on the left and right sides of the screw rod 43 are oppositely arranged, so that the blowing part and the suction part on the left and right sides can be simultaneously close to or away from each other to clamp pipe materials 1 of different sizes.
[0022] The blowing part comprises a blowing sliding block 44, a blowing plate 45 and a blowing pipe 46. In the embodiment, the blowing sliding block 44 is threadedly connected with the right side of the screw rod 43, and the lower side of the blowing sliding block 44 is slidingly connected with the positioning table 41. The blowing plate 45 is fixedly arranged on the upper side of the blowing sliding block 44, and the blowing plate 45 is in an arc structure. The blowing plate 45 is in a hollow structure, one end of the blowing pipe 46 is connected with the outer side of the blowing plate 45 to communicate the inside of the blowing plate 45 with the outside. The other end of the blowing pipe 46 is connected with an external blowing pump (not shown in the figure) to convey gas to the inside of the blowing plate 45. A plurality of blowing holes 451 are formed on the arc surface of the blowing plate 45, and the blowing holes 451 are uniformly distributed on the arc surface of the blowing plate 45. When the pipe material 1 is positioned and clamped, the arc surface of the blowing plate 45 faces the outer side of the pipe material 1. The blowing plate 45 is used for blowing the smoke generated by marking to the side of the suction part while clamping and limiting the pipe material 1.
[0023] The suction part comprises a suction sliding block 47, a suction plate 48 and a suction pipe 49. In the embodiment, the suction sliding block 47 is threadedly connected with the left side of the screw rod 43, and the lower side of the suction sliding block 47 is slidingly connected with the positioning table 41. The suction plate 48 is fixedly arranged on the upper side of the suction sliding block 47, and the suction plate 48 is in an arc structure. The suction plate 48 is in a hollow structure, one end of the suction pipe 49 is connected with the outer side of the suction plate 48 to communicate the inside of the suction plate 48 with the outside. The other end of the suction pipe 49 is connected with an external suction pump (not shown in the figure) to extract gas to the inside of the suction plate 48. A plurality of suction holes 481 are formed on the arc surface of the suction plate 48, and the suction holes 481 are uniformly distributed on the arc surface of the suction plate 48. When the pipe material 1 is positioned and clamped, the arc surface of the suction plate 48 abuts against the outer side of the pipe material 1. A plurality of adsorbing holes 482 are formed on the upper side of the suction plate 48, and the adsorbing holes 482 are used for adsorbing the smoke generated by marking.
[0024] Working principle: The pipe 1 is conveyed by the rotating roller 23, the pipe 1 is located on the upper side of the partition plate, when the pipe 1 moves to the lower side of the marking head 31 of the marking device 3, the pipe 1 stops moving, the marking head 31 performs laser marking on the surface of the pipe 1, in the process of laser marking, the surface of the pipe 1 is locally heated, and oxidation, boiling and ablation and other reactions occur on the surface of the pipe 1, and smoke is generated; the servo motor 42 drives the lead screw 43 to rotate, the air blowing sliding block 44 and the air suction sliding block 47 move towards each other to drive the air blowing plate 45 and the air suction plate 47 to move close to each other to position and clamp the pipe 1, so that the pipe 1 does not shake during marking, and the marking area does not deviate; the air suction plate 47 abuts against the outer side of the pipe 1, and the air suction holes 481 generate adsorption force on the surface of the pipe 1, the air blowing plate 45 generates thrust on the surface of the pipe 1 through the air blowing holes 451, and blows the smoke to the air suction side, and the adsorption holes 482 are used for absorbing the smoke; so that the smoke generated during marking can be more fully and quickly absorbed; when the marking is completed, the air blowing sliding block 44 and the air suction sliding block 47 move away from each other to drive the air blowing plate 45 and the air suction plate 47 to move away from each other, stop clamping the pipe 1, and the rotating roller 23 continues to drive the pipe 1 to move.
[0025] Specific embodiment two: please refer to Figures 4-7 An online pipe surface automatic marking and detection device, which is the same as specific embodiment one, and the difference is that it further comprises a cleaning assembly 5. The cleaning assembly 5 comprises a connecting rod 51, a lifting plate 52, a cleaning support 53, a transmission wheel 54, a lifting rod 56 and a supporting plate 57, and the cleaning assembly 5 is arranged in sequence after the positioning and adsorption assembly 4, and is used for cleaning the surface of the pipe 1 after marking.
[0026] The connecting rods 51 and the lifting plates 52 are symmetrically arranged on the two sides of the rack 21, the connecting rods 51 are connected with the air blowing sliding blocks 44 or the air suction sliding blocks 47 respectively, and the connecting rods 51 are connected with the lifting plates 52. In this embodiment, the number of the connecting rods 51 and the lifting plates 52 is two. One end of the connecting rod 51 located on the left side is connected with the side end face of the air blowing sliding block 44, the other end is connected with the lifting plate 52 on the left side, and the upper side of the lifting plate 52 on the left side is a slope inclined from left to right downward. One end of the connecting rod 51 located on the right side is connected with the side end face of the air suction sliding block 47, and the other end is connected with the lifting plate 52 on the right side. The upper side of the lifting plate 52 on the right side is a slope inclined from right to left downward. When the air blowing sliding block 44 and the air suction sliding block 47 move close to or away from each other, the lifting plates 52 on the left and right sides are driven to move close to or away from each other.
[0027] The number of support plates 57 is two, which are symmetrically arranged on the left and right sides of the rack 21, and the inner side of the support plate 57 is provided with a lifting groove 58. The lifting plate 52 is located between the support plates 57. The cleaning bracket 53 is arranged on the upper side of the lifting plate 52, the lower side of the cleaning bracket 53 is a slope matched with the surface of the lifting plate 52, and the lower side of the cleaning bracket 53 is in abutment with the upper side of the lifting plate 52. The upper outer side of the cleaning bracket 53 is provided with a lifting rod 56 at four ends, one end of the lifting rod 56 is connected with the outer side of the cleaning bracket 53, and the other end is slidably connected with the corresponding lifting groove 58. When the lifting plates 52 on both sides move close to or away from each other, the cleaning bracket 53 is pushed to move up and down.
[0028] The number of transmission wheels 54 is two, which are arranged at the two ends of the cleaning bracket 53 in front and back, and the transmission wheel 54 is rotatably connected between the inner side of the cleaning bracket 53. The transmission wheel 54 is located on the upper side of the pipe 1, the cleaning felt 55 is wound between the two transmission wheels 54, the cleaning felt 55 is located on the upper side of the pipe 1, and the cleaning felt 55 can move along the transmission direction of the transmission wheel 54. It should be noted that the power source of the transmission wheel 54 in this embodiment is friction, the pipe 1 moves forward to drive the cleaning felt 55, and the cleaning felt 55 drives the transmission wheel 54 to rotate through friction. Preferably, the cleaning felt 55 is made of graphite material. When the cleaning bracket 53 is lowered to the lowest position, the cleaning felt 55 on the lower side is in contact with the surface of the pipe 1, and the flat part at the bottom of the cleaning felt 55 moves synchronously with the pipe 1 in the movement process to clean the surface of the pipe 1 after marking.
[0029] Working principle: When the pipe 1 is in the marking state, the blowing slider 44 and the suction slider 47 move close to each other, and the lifting plates 52 on both sides move close to each other to lift the cleaning bracket 53 upward, so that the bottom of the cleaning felt 55 is separated from the surface of the pipe 1; after marking is completed, the blowing slider 44 and the suction slider 47 move away from each other, the connecting rod 51 drives the lifting plates 52 on both sides to move away from each other, the lower end surface of the cleaning bracket 53 slides relative to the upper side surface of the lifting plate 52, the lifting rod 56 slides downward along the lifting groove 58, and the cleaning bracket 53 is lowered, so that the cleaning felt 55 is in contact with the surface of the pipe 1, the pipe 1 continues to be conveyed forward, and is conveyed to the next marking position of the pipe 1 to reach the marking device 3, the flat part at the bottom of the cleaning felt 55 moves synchronously with the pipe 1 in the movement process, the cleaning felt 55 rolls back and forth under the drive of the transmission wheel 54, and the surface of the pipe 1 after marking has smoke attached to a part of the region, the cleaning felt 55 wipes off the region after passing through the region, thereby improving the cleaning degree of the surface of the pipe 1 after marking; when the pipe 1 is marked at the next position, the blowing slider 44 and the suction slider 47 move close to each other again, the cleaning bracket 55 is lifted upward, and the bottom of the cleaning felt 55 is separated from the surface of the pipe 1.
Claims
1. An online automatic marking and detection device for pipe surface, used for transmitting and marking pipe (1), characterized in that: It includes a conveying assembly (2), a marking device (3) and a positioning and adsorbing assembly (4); The conveying assembly (2) is used for conveying the pipe (1), and the marking device (3) and the positioning and adsorbing assembly (4) are both located on a conveying channel of the conveying assembly (2); The marking device (3) is used for laser marking on the surface of the pipe (1); The positioning and adsorbing assembly (4) comprises a positioning table (41), a servo motor (42), a lead screw (43), a partition plate, a blowing part and a suction part; the positioning table (41) is fixedly arranged on the conveying channel, the servo motor (42) is fixedly arranged outside the positioning table (41), and the partition plate is fixedly arranged in the middle of the positioning table (41); the lead screw (43) is transversely arranged on the positioning table (41) and the partition plate, the output end of the servo motor (42) is connected with the lead screw (43), so that the lead screw (43) is driven to rotate, and the blowing part and the suction part are arranged on the left and right sides of the partition plate respectively; the lead screw (43) is connected with the blowing part and the suction part respectively; the lead screw (43) is divided into left and right sides with the center of the partition plate as a boundary, and the threads on the left and right sides of the lead screw (43) are oppositely arranged, so that the blowing part and the suction part on the left and right sides can be simultaneously close to or away from each other.
2. The online automatic marking and detecting device for pipe surface according to claim 1, characterized in that: The blowing part comprises a blowing sliding block (44) and a blowing plate (45); the blowing sliding block (44) is threadedly connected with the right side of the lead screw (43), and the lower side of the blowing sliding block (44) is slidably connected with the positioning table (41); the blowing plate (45) is fixedly arranged on the upper side of the blowing sliding block (44), and the blowing plate (45) is in an arc structure; the suction part comprises a suction sliding block (47) and a suction plate (48); the suction sliding block (47) is threadedly connected with the left side of the lead screw (43), and the lower side of the suction sliding block (47) is slidably connected with the positioning table (41); the suction plate (48) is fixedly arranged on the upper side of the suction sliding block (47), and the suction plate (48) is in an arc structure; when the pipe (1) is positioned and clamped, the arc surface of the blowing plate (45) faces the outer side of the pipe (1), the arc surface of the suction plate (48) abuts against the outer side of the pipe (1), and the pipe (1) is clamped and limited.
3. The online automatic marking and detecting device for pipe surface according to claim 2, characterized in that: The blowing part further comprises a blowing pipe (46); the blowing plate (45) is in a hollow structure, one end of the blowing pipe (46) is connected with the outer side of the blowing plate (45), so that the inside of the blowing plate (45) is connected with the outside; the other end of the blowing pipe (46) is connected with an external blowing pump, so as to convey gas to the inside of the blowing plate (45); a plurality of blowing holes (451) are formed in the arc surface of the blowing plate (45), and the blowing holes (451) are uniformly distributed on the arc surface of the blowing plate (45).
4. The online automatic marking and detecting device for pipe surface according to claim 2, characterized in that: The suction part further comprises a suction pipe (49); the suction plate (48) is in a hollow structure, one end of the suction pipe (49) is connected with the outer side of the suction plate (48), so that the inside of the suction plate (48) is connected with the outside; the other end of the suction pipe (49) is connected with an external suction pump, so as to extract gas to the inside of the suction plate (48); a plurality of suction holes (481) are formed in the arc surface of the suction plate (48), and the suction holes (481) are uniformly distributed on the arc surface of the suction plate (48).
5. The apparatus for automatic marking and detecting of on-line pipe surface according to claim 4, characterized in that: The upper side of the suction plate (48) is provided with a plurality of suction holes (482) for adsorbing smoke generated by marking.
6. The apparatus for automatic marking and detecting of on-line pipe surface according to claim 1, characterized in that: The transmission assembly (2) comprises a rack (21), a transmission seat (22), a rotating roller (23) and a gear shaft (24). A plurality of groups of transmission seats (22) are fixedly arranged transversely on the rack (21), each group of transmission seats (22) comprises two transmission parts symmetrically arranged left and right to form a conveying channel, the transmission seats (22) are arranged at equal intervals, and the corresponding transmission parts are arranged at intervals in opposite directions. The rotating roller (23) is installed on the transmission seat (22) through the gear shaft (24), and the rotating roller (23) is rotatably connected to the transmission seat (22). The gear shaft (24) is fixedly provided with a gear on one end. The pipe (1) is placed on the rotating roller (23) to drive the pipe (1) to move along the length direction of the rack (21).
7. The apparatus according to claim 6, characterized in that: The marking device (3) is fixedly arranged between the two groups of transmission seats (22), the output end of the marking device (3) is a marking head (31), and the marking head (31) is located on the upper side of the pipe (1). The marking device (3) is electrically connected with an external marking system to control the content of marking output. The marking content at least includes product batch and manufacturer name information.
8. The apparatus for automatic marking and detecting of on-line pipe surface according to claim 1, characterized in that: The cleaning assembly (5) comprises a connecting rod (51), a lifting plate (52), a cleaning support (53), a transmission wheel (54), a lifting rod (56) and a support plate (57). The cleaning assembly (5) is arranged behind the positioning and adsorbing assembly (4) and is used for cleaning the surface of the pipe (1) after marking. The connecting rod (51) and the lifting plate (52) are symmetrically arranged on both sides of the conveying channel. The connecting rod (51) is connected with the corresponding air blowing part or air suction part. The connecting rod (51) is connected with the lifting plate (52). The support plate (57) is arranged on both sides of the rack (21). The inner side of the support plate (57) is provided with a lifting groove (58). The lifting plate (52) is located between the support plates (57). The cleaning support (53) is arranged on the upper side of the lifting plate (52). The lower side of the cleaning support (53) is a matching inclined surface of the surface of the lifting plate (52). The lower side of the cleaning support (53) abuts against the upper side of the lifting plate (52). The lifting rod (56) is arranged at the outer side of the upper part of the cleaning support (53). One end of the lifting rod (56) is connected with the outer side of the cleaning support (53), and the other end is slidingly connected with the corresponding lifting groove (58). The transmission wheel (54) is arranged at the two ends of the cleaning support (53). The transmission wheel (54) is rotatably connected with the inner side of the cleaning support (53). The transmission wheel (54) is located on the upper side of the pipe (1). The cleaning felt (55) is arranged between the two transmission wheels (54). The cleaning felt (55) is located on the upper side of the pipe (1). The cleaning felt (55) can move along the transmission direction of the transmission wheel (54).
9. The apparatus for automatic marking and detecting of on-line pipe surface according to claim 8, characterized in that: One end of the left connecting rod (51) is connected with the side end face of the air blowing part, and the other end is connected with the left lifting plate (52), the upper side face of the left lifting plate (52) is a left-to-right downward inclined plane; one end of the right connecting rod (51) is connected with the side end face of the air sucking part, and the other end is connected with the right lifting plate (52), the upper side face of the right lifting plate (52) is a right-to-left downward inclined plane; when the air blowing part and the air sucking part approach or move away from each other, the left and right lifting plates (52) are synchronously driven to approach or move away from each other.
10. The apparatus for automatic marking and detecting of on-line pipe surface according to claim 8, characterized in that: The cleaning felt (55) is made of graphite material; when the cleaning support (53) is lowered to the lowest position, the lower cleaning felt (55) is in contact with the surface of the pipe (1), and the flat part at the bottom of the cleaning felt (55) is synchronously moved by the pipe (1) in the movement process, so as to clean the surface of the pipe (1) after marking.